@misc{indiciaef6c18e549174,
  title = {Map showing distribution of copper in stream-sediment samples, Richfield 1° x 2° quadrangle, Utah},
  author = {William R. Miller and Jerry M. Motooka and John. B. McHugh},
  year = {1990},
  doi = {10.3133/mf2138c},
  url = {https://pubs.usgs.gov/publication/mf2138C},
  note = {Source identifier: mf2138C}
}